Interplanetary Podcast

Matthew Russell, Leddra Chapman

Booking Overview

A science interview podcast focused on space, combining host-led explainers with regular conversations with astronauts, astrophysicists, aerospace specialists, and authors. Agencies could credibly pitch space scientists, engineers, astronautics professionals, researchers, and authors with relevant expertise; booking is likely medium-to-high difficulty because the show seeks recognized specialists, including senior experts and astronauts.

Metrics

Episodes: 333

Frequency: Weekly

Rating: 4.7/5.0

Estimated listeners: 1,000 - 10,000

Listener location: USA

YouTube: 256 subscribers

Instagram: 740 followers

Contact Information

Publicly listed emails

info@interplanetary.org.uk

matt@interplanetary.org.uk

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Host

Matthew Russell - Space-focused podcast host covering astronomy, astrophysics, human spaceflight, rockets, and related science topics.

Leddra Chapman - Singer-songwriter and podcast co-host contributing to discussions of space and science topics.

Booking Intelligence

Booking Requirements

high

Typical Credentials:

Space scientists, astrophysicists, aerospace and astronautics specialists, astronauts, NASA or other space-agency professionals, and authors with authoritative expertise in space exploration or technology.

Required Achievements:

Professional expertise in space science, aerospace engineering, astronautics, or human spaceflight, Research, operational, or scientific work connected to major space agencies or exploration programs, Published books or recognized public work explaining space history, technology, or science

Recent Guest Discussions

John McFall - Astronaut Training, Accessible Spaceflight, And The Engineering And Science Of Making Human Spaceflight More Inclusive.

Rob Coppinger - The History And Development Of The HOTOL And Skylon Spaceplane Concepts.

Ryan Dowdy - Space Nutrition, Astronaut Food For The ISS And Artemis Program, Lunar Exploration, And Applications For First Responders On Earth.

Emma Chapman - Radio Astronomy And Studying The Universe Through Radio Waves, Including The Scientific Value Of Exploring Without Traveling Through Space.

Recent Topics

Science, Space Science, Astronomy, Astrophysics, Human Spaceflight

Episodes

Here's the recent few episodes on

Interplanetary Podcast

#331 -John McFall - Space For Everyone

September 19, 2026

Matt interviews ESA astronaut John McFall: Paralympian, surgeon and the first astronaut with a Paralympic medal to be cleared for a long-duration space mission. They talk astronaut training, the science and engineering of making spaceflight accessible, and what John’s journey could mean for the future of human spaceflight. Plus, Matt and Leddra talk eclipses, why totality is quite unlike anything else, and their trip to Mallorca to witness the spectacular total solar eclipse of August 2026

#330 - Space Planes - Rob Coppinger

July 26, 2026

In this episode, Matt chat with Rob Coppinger about the his new book on British spaceplanes HOTOL and Skylon. Matt is also joined by Leddra as they share their experiences of the Smithsonian Starstruck Immersive Experience in London and sample some classic astronaut ice cream. https://amzn.eu/d/04jUkGHP https://linktr.ee/interplanetary

#329 - Special Relativity

May 31, 2026

In this episode of The Interplanetary Podcast, I'm joined by ay new co-host, singer-songwriter Leddra Chapman, as we tackle one of the most mind-bending ideas in all of science: special relativity. From the speed of light and the nature of causality to time dilation, the ether, and Einstein's revolutionary insight into space and time, we follow the story that changed our understanding of reality. And, as always, I can't resist ending with a slightly outrageous thought experiment of my own.

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Publicly listed emails

info@interplanetary.org.uk

matt@interplanetary.org.uk

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